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Professor of Marketing and Digital Environment at Universität zu Köln at -

Foster School of Business

Principal Lecturer of Finance and Business Economics at Foster School of Business

Harvard Business School

John A. Paulson Professor of Business Administration at Harvard Business School

Kelley School of Business

Clinical Professor of Accounting at Kelley School of Business

Belk College of Business

Associate Director of Executive Education at Belk College of Business

Simon Business School

Rotman School of Management

Professor Emeritus of Economics at Rotman School of Management

Brookings Institution

Former Brookings Expert at Brookings Institution

Management Concepts

Instructor at Management Concepts

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Dean at -